CN102192228B - Fixed element and fixed device and electric device using fixed element - Google Patents
Fixed element and fixed device and electric device using fixed element Download PDFInfo
- Publication number
- CN102192228B CN102192228B CN201010125324.XA CN201010125324A CN102192228B CN 102192228 B CN102192228 B CN 102192228B CN 201010125324 A CN201010125324 A CN 201010125324A CN 102192228 B CN102192228 B CN 102192228B
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- flange
- fixture
- head
- screw rod
- perforation
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- 238000009434 installation Methods 0.000 claims description 13
- 239000012634 fragment Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 3
- 239000006096 absorbing agent Substances 0.000 description 8
- 238000012856 packing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 241000168254 Siro Species 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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- Cooling Or The Like Of Electrical Apparatus (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention relates to a fixed element, which comprises a head part and a screw rod extending from the head part. A flange extending towards an external radial direction from an outer surface is formed at one end close to the head part of the screw rod; a neck part is arranged between the flange and the head part; and the external diameter of the flange is changed along the extending direction of the screw rod. Due to the arrangement of the flange, the fixed element is pre-assembled on an object without a gasket and other extra elements when the object is connected to another object by the fixed element, and the fixed element can be screwed with the another object during assembly. Therefore, the fixed element is convenient to install, and the material cost and the assembly cost are saved. The invention also provides a fixed device and an electric device applying the fixed element.
Description
Technical field
The present invention relates to a kind of fixture and use fixture and the electronic installation of this fixture.
Background technology
Along with the fast development of computer industry, the serviceability of the electronic components such as central processing unit improves constantly, and its caloric value is also increasing, and heat radiation becomes the problem that these heat-generating electronic elements must solve when applying.Current, the solution that industry is generally taked is that installation of heat radiator dispels the heat on electronic component, need when this radiator is installed to be fixed on electronic component by fixture, the heat exchanger effectiveness that the quality of this fixture effect will directly affect between radiator and electronic component, and then affect radiating effect.
Wherein, screw is connection conventional in fixture, securing member.Screw comprises one to be had externally threaded screw rod, be positioned at the head of screw rod one end and be sheathed on the packing ring (also known as washer) on screw rod.This fixture comprises one and presses on fastener above radiator, and this fastener is provided with perforation, and this screw rod is from top to bottom through fastener, and packing ring is fastened on one end that screw rod passes fastener, and screw is pre-assembled on fastener.This packing ring screw self-clinching fastener comes off in transportation for preventing fixture.When radiator is fixed on electronic component by needs, by screw rod being passed one end and the connected piece of fastener, mutually screws togather as the screwed hole be positioned in the fixed leg of electronic component periphery and radiator and electronic component are interfixed.Wherein, when this kind of screw uses, packing ring needs by particular tool or manually assembles, as this increased production cost.And after screw is pre-assembled in fastener, may there is larger vibration and make gasket deforms and come off in fixture, bring inconvenience in the process of transport.
Summary of the invention
In view of this, be necessary to provide a kind of fixture and the electronic installation convenient, lower-cost fixture being installed and using this fixture.
A kind of fixture, comprise a connection piece, one connected piece and at least one fixture for connector is connected with connected piece, this connector is formed with the perforation that can wear for fixture, the screw rod that this fixture comprises a head and extends from head, this screw rod is in extending to form a flange near one end of head from outwardly radial direction, a neck is provided with between this flange and head, the external diameter of flange changes along the bearing of trend of screw rod, this fixture in inclination one angle and when applying an external force flange through perforation, described connector is matched with the neck of this fixture, when this fixture is vertically placed, the front projection of flange is an antiparallelogram, the size of the angle of this inclination obtains via following formula:
wherein D is the upper base length of antiparallelogram, and d is the length of going to the bottom of antiparallelogram, and H is the height of antiparallelogram, and δ 1, δ 2, δ 3 are respectively upper base length, length of going to the bottom and high dimensional tolerance.
A kind of electronic installation, comprise a shell, the top board that this shell comprises a base plate and is connected with base plate, this base plate is provided with fixed leg, top board is in just the place of the fixed leg on base plate being provided with to the perforation that can wear for fixture, the screw rod that this fixture comprises a head and extends from head, this screw rod is in extending to form a flange near one end of head from outwardly radial direction, a neck is provided with between this flange and head, the external diameter of flange changes along the bearing of trend of screw rod, this fixture in inclination one angle and when applying an external force flange through perforation, described top board is matched with the neck of this fixture, when this fixture is vertically placed, the front projection of flange is an antiparallelogram, the size of the angle of this inclination obtains via following formula:
wherein D is the upper base length of antiparallelogram, and d is the length of going to the bottom of antiparallelogram, and H is the height of antiparallelogram, and δ 1, δ 2, δ 3 are respectively upper base length, length of going to the bottom and high dimensional tolerance.
Compared with prior art, in forming flange near one end of head on the screw rod of fixture, between flange and head, form neck, and the external diameter of flange changes along the bearing of trend of screw rod.Therefore, when adopting this fixture to be connected with another object by one object, when vertically being placed by this fixture, its flange can not through the perforation that an object is arranged, and this fixture is tilted an angle and apply an external force time its flange can through perforation, thus this fixture can be made need not to be pre-assembled on an object by means of extra elements such as packing rings, only fixture and another object need be screwed togather during assembling, thus easy for installation, save material cost and assembly cost.
Accompanying drawing explanation
Fig. 1 is the solid assembling schematic diagram of electronic installation in an embodiment.
Fig. 2 is the three-dimensional exploded view of electronic installation in Fig. 1.
Fig. 3 is the front view of screw in Fig. 2.
Fig. 4 to Fig. 6 is the schematic diagram that screw is installed in top board in advance.
Fig. 7 is the cutaway view of Fig. 1 centre circle VII part.
Fig. 8 is the exploded view of heat abstractor in Fig. 2.
Fig. 9 is the screw that second embodiment of the invention provides.
Main element symbol description
| Electronic installation | 10 |
| Top board | 11 |
| Plate body | 110 |
| Perforation | 112、515 |
| Split groove | 114 |
| Base plate | 12 |
| Shell | 13 |
| Fixed leg | 14 |
| Screwed hole | 140、520 |
| Heat abstractor | 20 |
| Radiator | 21 |
| Heat pipe | 22 |
| Absorber plate | 23 |
| Screw | 30、60 |
| Head | 31 |
| Screw rod | 32 |
| Smooth section | 321 |
| Thread segment | 322 |
| Flange | 33 |
| End face | 331 |
| Side | 334、634 |
| Groove | 34 |
| Neck | 35 |
| Electronic component | 40 |
| Fixture | 50 |
| Shell fragment | 51 |
| Pressure section | 511 |
| Fasten arm | 513 |
| Supporting bracket | 52 |
| Bottom surface | 631 |
| Upper base | a |
| Go to the bottom | b |
| Waist | c |
| Diagonal | ab |
Embodiment
Referring to Fig. 1 and Fig. 2, is a kind of electronic installation 10 that one embodiment of the invention provides, and it comprises a shell 13, be contained in a heat abstractor 20 and of this shell 13 inside for this heat abstractor 20 being fixed on the fixture 50 of shell 13 inside.
This shell 13 comprises the base plate 12 of a rectangle and a top board 11 relative with this base plate 12.This top board 11 is parallel to each other with base plate 12.One direction, angle top board 11 place of this base plate 12 vertically extends to form a fixed leg 14.The central authorities of this fixed leg 14 are provided with a screwed hole 140, and its inner surface is provided with some internal threads.The bight of this top board 11 is in the depression just place of fixed leg 14 being provided with to a circle.The thickness of plate body 110 of this top board 11 in depression is less, and the central authorities of this plate body 110 are provided with a perforation 112 and split groove 114 from the some tiny of the outside radiated entends of the outer peripheral edges of perforation 112.This top board 11 is connected with base plate 12 by screw 30.
Please refer to Fig. 3, this screw 30 comprises a head 31, vertically an outward extending screw rod 32 and the flange 33 that extends from the outwardly radiation of this screw rod 32 near one end of head from the side of this head 31.This screw rod 32 comprises one near the smooth section 321 and of head 31 away from the thread segment 322 of this head 31.The smooth outer surface of this smooth section 321.The outer surface of this thread segment 322 is formed with some external screw threads.This head 31 is in the form of annular discs, and the central authorities of the side that this head 31 is relative with screw rod 32 are formed with the groove 34 of one " ten " font.The external diameter of this head 31 is greater than the diameter of perforation 112.This flange 33 is formed at this smooth section 321 near one end of head 31.The external diameter of the part of this smooth section 321 except flange 33 and the external diameter of thread segment 322 are all less than the diameter of perforation 112, and thus the thread segment 322 of screw rod 32 and the part of smooth section 321 between flange 33 and thread segment 322 can be arranged in perforation 112 from top to bottom.The end face 331 that this flange 33 comprises an annular and the tapered side 334 connected between the outer peripheral edges of described end face 331 and the outer surface of smooth section 321.The end face 331 of flange 33 is spaced and parallel with head 31, forms a neck 35 between end face 331 and head 31, and the length of this neck 35 is slightly larger than the thickness of plate body 110.The external diameter of this flange 33 is maximum in the top end that side 334 is crossing with end face 331, and is greater than the diameter of perforation 112, and reduces gradually from top to bottom along the bearing of trend of screw rod 32, until side 334 bottom end crossing with the outer surface of smooth section 321 is minimum.When this screw 30 is vertically placed, this flange 33 be projected as an antiparallelogram, wherein, be trapezoidal upper base a after end face 331 projects, be trapezoidal waist c after side 334 projects, and the intersecting lens of the outer surface of the bottom of side 334 and smooth section 321 is projected as the trapezoidal b that goes to the bottom.
As shown in Figure 4, external diameter due to the top of flange 33 is greater than the diameter of perforation 112, therefore when by screw 30, vertically placement wears plate body 110 from top to bottom, thread segment 322 and the part of smooth section 321 between flange 33 and thread segment 322 of screw rod 32 can be arranged in perforation 112 smoothly, and flange 33 is along the horizontal direction perpendicular to screw rod 32, the diametric full-size namely along perforation 112 is greater than the diameter of perforation 112 and can not passes perforation 112.But, because the external diameter of flange 33 outwards reduces gradually from top, flange 33 can be reduced along perforation 112 diametric full-size when therefore being tilted by screw 30, as shown in Figure 5 and Figure 6, tilt screw 30 certain angle θ, flange 33 can be made to equal along the diametric full-size of perforation 112 or to be slightly less than when screw 30 is vertically placed flange 33 along the diametric maximum outside diameter of perforation 112, now apply the head 31 that an external force presses down this screw 30, make the side 334 that screw 30 overcomes flange 33 and the frictional force of boring a hole between 112 inner surfaces, thus make flange 33 can pass through perforation 112, it vertically places through after perforation 112 by flange 33 until screw 30 again, thus between the end face 331 plate body 110 being held on head 31 and flange 33, screw 30 is pre-assembled on top board 11.Wherein, by screw 30 slant setting and in the process pressed down, the setting splitting groove 114 around perforation 112, can facilitate flange 33 more to pass through perforation 112.To screw 30 is oppositely extracted from perforation 112, need to meet the side 334 being enough to screw 30 tilt angle theta and applying to overcome flange 33 and external force two conditions upwards of boring a hole the frictional force between 112 inner surfaces simultaneously, and these two conditions are difficult to meet in unartificial situation simultaneously, therefore, in unartificial situation, the screw 30 be pre-assembled on top board 11 is difficult to come off from perforation 112.
When designing this screw 30, suppose that the maximum outside diameter of this flange 33 is D, minimum outer diameter is d, the height of flange 33, namely the minimum constructive height between top and bottom is H, the dimensional tolerance of the maximum outside diameter of this screw 30 manufacture process flange 33 is δ 1, the dimensional tolerance of minimum outer diameter is δ 2, high dimensional tolerance is δ 3, therefore, the maximum outside diameter of flange 33 reality is D ± δ 1, and minimum outer diameter is d ± δ 2, height is H ± δ 3, and the large I of the angle θ tilted when this screw 30 wears perforation 112 obtains via following formula:
the equal and opposite in direction of diagonal ab and the angle between b of going to the bottom in the antiparallelogram formed after the size of this angle θ and flange 33 orthographic projection.The size of the diameter of perforation 112 slightly larger than or equal this screw 30 and to tilt flange 33 full-size in the horizontal direction after this angle θ, and be less than the maximum outside diameter D ± δ 1 of flange 33 reality.As shown in Figure 7, when assembling this shell 13, top board 11 to be covered on above base plate 12 and to make the thread segment 322 of screw 30 aim at the screwed hole 140 of fixed leg 14, then thread segment 322 being screwed in fixed leg 14.
This heat abstractor 20 comprises radiator 21, heat pipe 22 and an absorber plate 23.This absorber plate 23 is attached on an electronic component 40, and it is for absorbing the heat produced when electronic component 40 works.Heat pipe 22 one end is attached at the upper surface of absorber plate 23, the other end contacts with radiator 21 is hot, it is passed to rapidly radiator 21 for the heat absorbed from electronic component 40 by absorber plate 23, thus is distributed to rapidly in external environment condition by heat by radiator 21.
This fixture 50 is for being fixed on the top of electronic component 40 by heat abstractor 20, it comprises two shell fragments 51 pressing on absorber plate 23 upper surface, the some fixtures being positioned at the supporting bracket 52 below electronic component 40 and connecting shell fragment 51 and supporting bracket 52.Namely described fixture adopts the top board 11 of above-mentioned connected with outer casing 13 and the screw 30 of base plate 12.Each shell fragment 51 comprises the pressure section 511 and two of the bar shaped that a fit with the upper surface of absorber plate 23 respectively from the fastening arm 513 of the outward-dipping extension in the two ends of pressure section 511, and each fastens arm 513 and forms a perforation 515 that screw 30 can be supplied to wear away from the end of pressure section 511.This supporting bracket 52 forms screwed hole 520 corresponding with screw 30 respectively.The inner surface of this screwed hole 520 is provided with some internal threads.During use, first by method as shown in Figures 4 to 6, screw 30 is installed on shell fragment 51 in advance, as long as screw 53 is screwed in during assembling in screwed hole 520 corresponding in supporting bracket 52, just can by absorber plate 23 and electronic component 40 compact siro spinning technology.
In above-described embodiment, top board 11 and base plate 12, shell fragment 51 and supporting bracket 52 are respectively the connector and connected piece that are interfixed by screw 30.Only need in forming flange 33 near one end of head 31 on the screw rod 32 of screw 30, when screw 30 is vertically placed, its flange 33 is along connector, diametric maximum outside diameter as perforation 112,515 on top board 11 and shell fragment 51 is greater than the diameter of perforation 112,515, and screw 30 tilts during certain angle θ its flange 33 along on connector bore a hole 112,515 diametric full-size equal or be slightly less than the diameter of perforation 112,515, just screw 30 need can not be pre-assembled on connector by means of extra elements such as packing rings.Because flange 33 exists certain frictional force through its side 334 during perforation 112 with the inner surface of perforation 112, screw 30 is being pre-assembled on connector, not when artificially screw 30 tilt angle theta also being applied the external force upwards of the frictional force being enough to overcome between the side 334 of flange 33 and perforation 112 inner surfaces, screw 30 can not come off from perforation 112.During assembling, then by screw 30 and connected piece, as the screwed hole 140,520 on base plate 12 and supporting bracket 52 screws togather, easy for installation, thus saved material cost and assembly cost.
Figure 9 shows that the screw 60 that second embodiment of the invention provides, it is from the different of screw 30 in above-mentioned first embodiment: the bottom surface 631 that flange 63 comprises an annular and the tapered side 634 connected between the outer peripheral edges of described bottom surface 631 and the outer surface of smooth section 321.The external diameter of this flange 63 is maximum in the bottom end that side 634 is crossing with bottom surface 631, and reduces gradually from the bottom up along the bearing of trend of screw rod 32, until side 634 top end crossing with the outer surface of smooth section 321 is minimum.When this screw 60 is vertically placed, when the projection of this flange 63 and screw 30 are vertically placed, the direction of the projection of its flange 33 is in swinging to.
Claims (8)
1. a fixture, comprise a connection piece, one connected piece and at least one fixture for connector is connected with connected piece, this connector is formed with the perforation that can wear for fixture, the screw rod that this fixture comprises a head and extends from head, this screw rod is in extending to form a flange near one end of head from outwardly radial direction, a neck is provided with between this flange and head, the external diameter of flange changes along the bearing of trend of screw rod, it is characterized in that: this fixture in inclination one angle and apply an external force time flange through perforation, described connector is matched with the neck of this fixture, when this fixture is vertically placed, the front projection of flange is an antiparallelogram, the size of the angle of this inclination obtains via following formula:
wherein D is the upper base length of antiparallelogram, and d is the length of going to the bottom of antiparallelogram, and H is the height of antiparallelogram, and δ 1, δ 2, δ 3 are respectively upper base length, length of going to the bottom and high dimensional tolerance.
2. fixture as claimed in claim 1, it is characterized in that: this connector is a shell fragment, this connected piece is the supporting bracket be arranged at below shell fragment, and this supporting bracket is provided with the screwed hole screwed togather with screw rod.
3. fixture as claimed in claim 1, it is characterized in that: this flange comprises the end face of an annular and the tapered side of connection outer peripheral edges for end face and the outer surface of screw rod, the external diameter of this flange reduces downwards along the bearing of trend of screw rod gradually from the one end near head, and the external diameter in side and end face intersection is maximum.
4. fixture as claimed in claim 3, is characterized in that: this end face and head are parallel to each other.
5. fixture as claimed in claim 1, it is characterized in that: this flange comprises the bottom surface of an annular and the tapered side of connection outer peripheral edges for bottom surface and the outer surface of screw rod, the external diameter of this flange upwards reduces along the bearing of trend of screw rod gradually from the one end away from head, and the external diameter in side and intersection, bottom surface is maximum.
6. fixture as claimed in claim 1, is characterized in that: this screw rod comprises near the smooth section of head and the thread segment away from head, and the outer surface of this thread segment is provided with some external screw threads, and this flange-shape is formed in smooth section.
7. an electronic installation, comprise a shell, the top board that this shell comprises a base plate and is connected with base plate, this base plate is provided with fixed leg, top board is in just the place of the fixed leg on base plate being provided with to the perforation that can wear for fixture, the screw rod that this fixture comprises a head and extends from head, this screw rod is in extending to form a flange near one end of head from outwardly radial direction, a neck is provided with between this flange and head, the external diameter of flange changes along the bearing of trend of screw rod, it is characterized in that: this fixture in inclination one angle and apply an external force time flange through perforation, described top board is matched with the neck of this fixture, when this fixture is vertically placed, the front projection of flange is an antiparallelogram, the size of the angle of this inclination obtains via following formula:
wherein D is the upper base length of antiparallelogram, and d is the length of going to the bottom of antiparallelogram, and H is the height of antiparallelogram, and δ 1, δ 2, δ 3 are respectively upper base length, length of going to the bottom and high dimensional tolerance.
8. electronic installation as claimed in claim 7, is characterized in that: the surrounding of this perforation radially stretches out to be formed and somely splits groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010125324.XA CN102192228B (en) | 2010-03-16 | 2010-03-16 | Fixed element and fixed device and electric device using fixed element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010125324.XA CN102192228B (en) | 2010-03-16 | 2010-03-16 | Fixed element and fixed device and electric device using fixed element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102192228A CN102192228A (en) | 2011-09-21 |
| CN102192228B true CN102192228B (en) | 2015-07-08 |
Family
ID=44600907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010125324.XA Expired - Fee Related CN102192228B (en) | 2010-03-16 | 2010-03-16 | Fixed element and fixed device and electric device using fixed element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102192228B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656142B (en) * | 2016-12-29 | 2023-09-15 | 宁波方太厨具有限公司 | Inductive switch structure for household appliances |
| CN107046590A (en) * | 2017-04-25 | 2017-08-15 | 重庆市尚益实业有限公司 | Mobile phone metal protection frame |
| CN109958699A (en) * | 2017-12-14 | 2019-07-02 | 福特环球技术公司 | Fasteners and Base Components |
| CN109488677B (en) * | 2018-11-27 | 2020-07-07 | 英业达科技有限公司 | Shell body |
| CN113294427A (en) * | 2021-06-01 | 2021-08-24 | 江铃汽车股份有限公司 | Bolt snap ring |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262769C (en) * | 2000-12-16 | 2006-07-05 | 索斯科公司 | Captive screw |
| CN2859055Y (en) * | 2005-11-17 | 2007-01-17 | 重庆力帆实业（集团）有限公司 | Disposable anti-theft bolt |
| US7583496B2 (en) * | 2007-06-01 | 2009-09-01 | Asustek Computer Inc. | Portable electronic device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06185515A (en) * | 1992-12-18 | 1994-07-05 | Sannohashi:Kk | Method for fixing bolt to plate material and structure of this bolt |
-
2010
- 2010-03-16 CN CN201010125324.XA patent/CN102192228B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262769C (en) * | 2000-12-16 | 2006-07-05 | 索斯科公司 | Captive screw |
| CN2859055Y (en) * | 2005-11-17 | 2007-01-17 | 重庆力帆实业（集团）有限公司 | Disposable anti-theft bolt |
| US7583496B2 (en) * | 2007-06-01 | 2009-09-01 | Asustek Computer Inc. | Portable electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102192228A (en) | 2011-09-21 |
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